<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script>
    console.log(Math.ceil(1.9))
    console.log(Math.random()*( 10 + 1 ))

    Math.floor(Math.random()*( 10 + 1 ))
    Math.floor(Math.random()*( 5 + 1 )) + 5
    Math.floor(Math.random()*( M -N+ 1 )) + N

    

  </script>
</body>
</html>